Yellow fever vaccines are packed in special boxes to ensure they remain cold until use. The vaccines need to be kept at a temperature between 2 and 8 degrees Celsius, not an easy task with daytime temperatures reaching 40° C.
Yellow fever vaccines are packed in special boxes to ensure they remain cold until use. The vaccines need to be kept at a temperature between 2 and 8 degrees Celsius, not an easy task with daytime temperatures reaching 40° C.